Concussion dangers go beyond football, cross gender lines

The rate of concussions among U.S. high school athletes has more than doubled between 2005 and 2012, with numbers now as high as 300,000 per year, according to a study published this year in The American Journal of Sports Medicine.

While 29 percent of those concussions happened in football, the danger of such head injuriestranscends into other sports. It crosses gender lines as well.